v0.1.0 - First Draft of Crawler Framework for Python

First draft

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1. Components:
   Different components response of different things.
   1-1. HTTP request sender
   1-2. HTTP response parser
   1-3. Data processing handler
   1-4. Persistence layer

2. Crawler roles:
   Different crawler role works in different way.
   2-1. SimpleCrawler
   2-2. AsyncSimpleCrawler
   2-3. ExecutorCrawler
   2-4. PoolCrawler